GAS TURBINE ENGINE ACS Russian patent published in 2012 - IPC F02C9/28 

FIELD: engines and pumps.

SUBSTANCE: proposed system additionally comprises maximum signal selector, 3^rd comparator, coupling unit, switch and 2^nd adder. Note here that 1^st and 2^nd inputs of maximum signal selector are connected with 1^st and 2^nd inputs of minimum signal selector with its output connected with 2^nd input of 3^rd comparator. Output of 1^st comparator is connected with second input of second adder with its output connected to second input of second adder with its output connected to rotor rpm controller. Logical device output is connected with second input of the switch with its second output connected to second input of first adder.

EFFECT: adaptive control over various output coordinates by means of channel selector and signal self-tuning circuit, longer lifer of gas turbine engine.

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